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Tubular valving system and method

a valve system and tube valve technology, applied in the field of tube valves, can solve the problems of valve closure, tight clearance, valve inability to fully close,

Inactive Publication Date: 2011-01-06
BAKER HUGHES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fit of the tapered plunger into the tapered seat, however, creates very tight clearances that are subject to jamming, preventing closure of the valve, by relatively small sized particles.
In environments wherein contamination is prevalent, use of such valves can result in the inability to fully close the valve possibly necessitating removal, repair, cleaning or replacement of the valve.
Costs associated with removal of the valve from the wellbore to repair or replace the valve, in addition to the cost of lost production while the well is not producing, are a few of the concerns associated with use of these valves.

Method used

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  • Tubular valving system and method
  • Tubular valving system and method
  • Tubular valving system and method

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Embodiment Construction

A detailed description of one or more embodiments of the disclosed apparatus and method are presented herein by way of exemplification and not limitation with reference to the Figures.

Referring to FIGS. 1-3, a tubular valving system is illustrated generally at 10. The valving system 10 includes, a tubular 14, having a bore 18 therethrough and a port 22 that fluidically connects the bore 18 to an outside 26 of the tubular 14, and a valve stem 30 slidably engaged with the bore 18. The valving system 10 is configured such that movement of the valve stem 30 in relation to the tubular 14 controls variable choking of flow between the bore 18 and the port 22.

The bore 18 has a step 32 defining a non-tapered smaller dimension 34 and a larger dimension 38, depicted in this embodiment as diameters, with a radial surface 42 located at the step 32. The port 22 fluidically connects the larger dimension 38 to the outside 26 of the tubular 14. Although the port 22 illustrated includes only a single...

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Abstract

A tubular valving system includes, a tubular having a bore therethrough with at least one port defining fluidic communication between the bore and an outside of the tubular, and a valve stem disposed within the bore of the tubular that is longitudinally movable with respect to the tubular, the valve stem has an outer surface slidably engagable with the bore, the outer surface has features that provide variably choked fluidic communication between the bore and the at least one port, and an amount of choke varies depending upon a relative position of the valve stem with respect to the bore

Description

BACKGROUNDTubular valves that control occlusion of ports that fluidically connect a borehole of a tubular with an outside of the tubular are commonly used in several industries including the downhole completion industry. Such valves are deployed in boreholes to control fluid flow in both directions, inside to outside of the tubular as well as outside to inside of the tubular, through the ports. Needle valves with tapered seats and tapered plungers are commonly employed in applications where variable choking of the flow is desirable. The fit of the tapered plunger into the tapered seat, however, creates very tight clearances that are subject to jamming, preventing closure of the valve, by relatively small sized particles. In environments wherein contamination is prevalent, use of such valves can result in the inability to fully close the valve possibly necessitating removal, repair, cleaning or replacement of the valve. Costs associated with removal of the valve from the wellbore to ...

Claims

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Application Information

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IPC IPC(8): F15D1/02F16K15/02
CPCE21B34/06F16K1/52F16K1/36E21B43/12Y10T137/0318
Inventor JOSEPH, PAUL
Owner BAKER HUGHES INC